442154994 has 16 divisors (see below), whose sum is σ = 886723968. Its totient is φ = 146982672.

The previous prime is 442154983. The next prime is 442155011. The reversal of 442154994 is 499451244.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98197 + ... + 102600.

It is an arithmetic number, because the mean of its divisors is an integer number (55420248).

Almost surely, 2^442154994 is an apocalyptic number.

442154994 is an abundant number, since it is smaller than the sum of its proper divisors (444568974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442154994 is a wasteful number, since it uses less digits than its factorization.

442154994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201169.

The product of its digits is 207360, while the sum is 42.

The square root of 442154994 is about 21027.4818749179. The cubic root of 442154994 is about 761.8301885986.

The spelling of 442154994 in words is "four hundred forty-two million, one hundred fifty-four thousand, nine hundred ninety-four".